<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="stylesheet" href="style.css">
  <title>Animated Countdown</title>
</head>
<body>
  <div class="counter">
    <div class="nums">
      <span class="in">3</span>
      <span>2</span>
      <span>1</span>
      <span>0</span>
    </div>
    <h4>Get Ready</h4>
  </div>

  <div class="final">
    <h1>GO</h1>
    <button id="replay">
      <span>Replay</span>
    </button>
  </div>
  <script src="script.js"></script>
</body>
</html>